export let username="zs"
let age1="18"
// module.exports={
//     name:username,
//     age:age
// }
// export default age//default一个模块只能用一次
function add(){
    return 2+3
}
export default{
    age:age1,
    add:add,
    stu:{
        name:"zs",
        age:22,
        curs:{
            time:"Jan",
            teacher:"ls"
        }
    }
}

